I probably have more accessible from outside than not. Many are required: hosting a website, a media server I can access from anywhere outside the house, my phone system, etc. Some I used to use more than I do now: podcast service, that sort of thing. Then a bunch that are internal only. My phone connects home over Wireguard so that’s pretty convenient when out and about for accessing internal only systems.
I’ve been using Lychee for photo sharing with family for the past few months. Works really quickly, simply, plus it looks good.